Table 2.
The overall unadjusted and adjusted association of the Impact of Events Scale and temporomandibular pain in female monozygotic and dizygotic twins
| All Twins | Monozygotic Twins | Dizygotic Twins | ||||
|---|---|---|---|---|---|---|
| Impact of Events | ||||||
| Scale Score1 | OR2 | 95% CI3 | OR | 95% CI | OR | 95% CI |
| Unadjusted | ||||||
| Lowest tercile | 1.0 | -- | 1.0 | -- | 1.0 | -- |
| Middle tercile | 1.7 | 1.1 – 2.6 | 1.8 | 1.1 – 2.8 | 1.5 | 0.7 – 3.4 |
| Highest tercile | 3.8 | 2.6 – 5.6 | 3.4 | 2.1 – 5.3 | 5.3 | 2.5 – 11.3 |
| Ptrend < 0.01 | Ptrend < 0.01 | Ptrend < 0.01 | ||||
|
| ||||||
| Adjusted for sociodemographic characteristics,4 depression, and chronic widespread pain | ||||||
| Lowest tercile | 1.0 | -- | 1.0 | -- | 1.0 | -- |
| Middle tercile | 1.5 | 1.0 – 2.2 | 1.6 | 1.0 – 2.6 | 1.2 | 0.5 – 2.6 |
| Highest tercile | 2.8 | 1.9 – 4.2 | 2.6 | 1.6 – 4.1 | 3.8 | 1.8 – 7.9 |
| Ptrend < 0.01 | Ptrend < 0.01 | Ptrend < 0.01 | ||||
1
Impact of Events Scale: lowest tercile= 0 – 10, middle tercile = 11 – 27, highest tercile = 28 – 55
2
OR = odds ratio
3
CI = confidence interval
4
age, marital status, education, and race